The Erstrezensent has already said to the objective things praiseworthy: I can only agree with him fully to its own first test images! :)) What though the cheap "standard" plastic lens cover: ((is concerned, I have to really emphasize that this is an absolute blunder given the high quality and not cheap lens! In addition, a (quite available!) Original-metal lens cap Olympus again currently costs between about 36 and about 43! And the aperture will affect about 60 to 72 (currently) despite metal design simply overpriced!
For the lens, there is therefore from me "only" 4 stars. Even a reasonable standard specification (or at least a reasonable lens cap instead of cheap China-Ware!) I would have expected considering this price range already OLYMPUS!